Coupling receiver



FIG. 1 is a front view of a coupling receiver;

FIG. 2 is a left side view, thereof;

FIG. 3 is a rear view, thereof;

FIG. 4 is a top view, thereof;

FIG. 5 is a bottom view, thereof;

FIG. 6 is a front perspective view, thereof; and,

FIG. 7 is a rear perspective view, thereof.

Portions of the coupling receiver shown in broken lines form no part of the claimed design. 

CLAIM I claim the ornamental design for a coupling receiver, as shown and described. 